Commit 70fcaf92 authored by Ricardo Ribalda's avatar Ricardo Ribalda Committed by Laurent Pinchart
Browse files

media: uvcvideo: Extend documentation of uvc_video_clock_decode() 



Make an explicit reference to UVC 1.5, explaining how the algorithm
supports the different behaviour of UVC 1.1 and 1.5.

Reviewed-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: default avatarHungNien Chen <hn.chen@sunplusit.com>
Signed-off-by: default avatarRicardo Ribalda <ribalda@chromium.org>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
parent 5dd0eab8

drivers/media/usb/uvc/uvc_video.c

+3 −1
Original line number Diff line number Diff line
@@ -518,7 +518,9 @@ uvc_video_clock_decode(struct uvc_streaming *stream, struct uvc_buffer *buf, 


	/*

	 * To limit the amount of data, drop SCRs with an SOF identical to the

	 * previous one.

	 * previous one. This filtering is also needed to support UVC 1.5, where

	 * all the data packets of the same frame contains the same SOF. In that

	 * case only the first one will match the host_sof.

	 */

	dev_sof = get_unaligned_le16(&data[header_size - 2]);

	if (dev_sof == stream->clock.last_sof)